Provides aliases for the Perl built-in special variables.
Everything else about the variables and their use remains the same. Be
aware, though, that using the English module significantly slows down
a program for regular expressions.
Some of the Perl variables match some awk built-in variables. For those
cases, you'll find two English names: a short version (which is the
awk name) and a longer version. For example, you can use
either $ERRNO (the awk name) or $OS_ERROR to refer to
the Perl variable $!.
Here is the list of variables, and their English alternatives: